Canker sores are not contagious and are not related to the herpes simplex virus, also known as cold sores. Canker sores are thought to be caused by: Injuries to the mouth, as seen frequently by contact sports players. Accidentally biting the inside of the cheek or lip may also result in a canker sore.
Mexico has a population of 112,468,855 (July 2010 estimate) and its capital and largest city is Mexico City. Mexico is divided into 32 federal entities, of which 31 are states and one is a federal district. The following is a list of Mexico's 31 states and one federal district arranged by area. The population (as of 2009) and capital of each have also been included for reference.
Mexico, officially called the United Mexican States, is a country located in North America south of the United States and north of Belize and Guatemala . It has coastline along the Pacific Ocean, Caribbean Sea, and the Gulf of Mexico and it is considered the 13th largest country in the world based on area.